SunStar SJS/A-BA2 User manual
- Category
- Sewing machines
- Type
- User manual
SunStar SJS/A-BA2 is a direct-drive, automatic, 2-needle belt loop sewing machine designed for industrial use. It features a full-rotary hook timing system and a trimmer setting that allows for precise loop formation. The machine also includes a lower thread winder and a bobbin thread volume adjustment system for easy and efficient thread handling. Additionally, the SunStar SJS/A-BA2 has a supply device with adjustable loop turning finger and finger position, as well as an output device with speed and position adjustments.
SunStar SJS/A-BA2 is a direct-drive, automatic, 2-needle belt loop sewing machine designed for industrial use. It features a full-rotary hook timing system and a trimmer setting that allows for precise loop formation. The machine also includes a lower thread winder and a bobbin thread volume adjustment system for easy and efficient thread handling. Additionally, the SunStar SJS/A-BA2 has a supply device with adjustable loop turning finger and finger position, as well as an output device with speed and position adjustments.
R
User’s
Manual
SJS/A-BA2
Direct-Drive, Automatic
2-Needle Belt Loop
Sewing Machine
Best Quality
Best Price
Best Service
R
1.
Thank you for purchasing our product. Based on the rich expertise and
experience accumulated in industrial sewing machine production, SUNSTAR
will manufacture industrial sewing machines, which deliver more diverse
functions, high performance, powerful operation, enhanced durability, and
more sophisticated design to meet a number of user’s needs.
2. Please read this user’s manual thoroughly before using the machine. Make
sure to properly use the machine to enjoy its full performance.
3. The specifications of the machine are subject to change, aimed to enhance
product performance, without prior notice.
4.
This product is designed, manufactured, and sold as an industrial sewing
machine. It should not be used for other than industrial purpose.
4
Contents
1. Safety Rules
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6
1-1) Safety Stickers
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6
1-2) Machine Delivery
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7
1-3) Machine Installation
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8
1-4) Machine Operation
-------------------------------------------------------------------------------
8
1-5) Repair and Maintenance
------------------------------------------------------------------------
9
1-6) Type of Safety Labels
----------------------------------------------------------------------------
9
1-7) Location of Safety Labels
---------------------------------------------------------------------
10
2. Machine Type and Specifications
----------------------------------------------------------
11
2-1) Machine Type
------------------------------------------------------------------------------------
11
2-2) Specifications
------------------------------------------------------------------------------------
11
3. Preparation
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12
3-1) Installation Environment
-----------------------------------------------------------------------
12
3-2) Electricity Environment
------------------------------------------------------------------------
12
3-3) Parts Name
---------------------------------------------------------------------------------------
13
3-4) Machine Installation
----------------------------------------------------------------------------
14
3-4-1) Thread Stand Installation
--------------------------------------------------------------
14
3-4-2) Air Hose Connection
--------------------------------------------------------------------
14
4. Machine Operation
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15
4-1) Oil Supply
-----------------------------------------------------------------------------------------
15
4-1-1) Oil Supply Position
----------------------------------------------------------------------
15
4-2) Needle
----------------------------------------------------------------------------------------------
15
4-2-1) Needle Installation
-----------------------------------------------------------------------
15
4-2-2) Needle Placement
-----------------------------------------------------------------------
15
4-3) Thread
----------------------------------------------------------------------------------------------
16
4-3-1) Upper and Lower Thread Placement
-----------------------------------------------
16
4-3-2) Bobbin Case Placement and Removal
--------------------------------------------
16
4-3-3) Tension Adjustment
---------------------------------------------------------------------
17
4-3-4) Lower Thread Winder
-------------------------------------------------------------------
18
4-3-5) Bobbin Thread Volume Adjustment
-------------------------------------------------
18
5.
----------------------------------------------------------------------------------------
19
5-1) Adjusting the full-rotary hook timing
-------------------------------------------------------
19
5-2) Trimmer Setting
---------------------------------------------------------------------------------
21
5-3)
Adjusting the Trimmer Spring
------------------------------------------------------------------
23
5
6. Settings
-------------------------------------------------------------------------------------------------
24
6-1) Setting method depending on belt loop length
------------------------------------------
24
6-1-1) Needle Bar Clamp Adjustment
-------------------------------------------------------
24
6-1-2) Adjustment of hook base plate
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24
6-1-3) Adjustment of PF position
-------------------------------------------------------------
24
6-1-4) Hook setting
-------------------------------------------------------------------------------
25
6-1-5) Supply Device Position Adjustment
-------------------------------------------------
25
6-2) Supply Device
------------------------------------------------------------------------------------
26
6-2-1) Loop Turning Finger Adjustment
-----------------------------------------------------
26
6-2-2) Finger Adjustment
-----------------------------------------------------------------------
26
6-2-3) Limit Stopper Setting
--------------------------------------------------------------------
27
6-2-4) Finger Height Adjustment
--------------------------------------------------------------
27
6-2-5) Finger Position Adjustment
------------------------------------------------------------
28
6-2-6) Belt Loop Handle Adjustment
---------------------------------------------------------
28
6-3) Supplying device setting
----------------------------------------------------------------------
29
6-4) Basic setting
--------------------------------------------------------------------------------------
30
6-5) Output Device
------------------------------------------------------------------------------------
32
6-5-1) Output Device Speed Adjustment
----------------------------------------------------
32
6-5-2) Output Device Position Adjustment
-------------------------------------------------
33
6-6) Output device clamp setting
------------------------------------------------------------------
33
6-7) Cutter
-----------------------------------------------------------------------------------------------
35
6-7-1) Loop Guide Center Matching
---------------------------------------------------------
35
6-7-2) Blade Installation
-------------------------------------------------------------------------
35
6-7-3) Pneumatic Setting for Loop Cutting System
--------------------------------------
36
6-7-4) Hammer Balance Adjustment
--------------------------------------------------------
36
6.7.5) Automatic Removal of Belt Loop Connection Part
------------------------------
37
6-8) Trimmer
--------------------------------------------------------------------------------------------
37
6-8-1) Trimmer
-------------------------------------------------------------------------------------
37
6-8-2) Trimmer Speed Adjustment
-----------------------------------------------------------
37
7. Maintenance
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39
7-1) Regular Checkpoints
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39
7-2) Oil Supply
-----------------------------------------------------------------------------------------
39
7-2-1) Arm
------------------------------------------------------------------------------------------
39
7-2-2) Hook
-----------------------------------------------------------------------------------------
40
7-3) Cleaning
-------------------------------------------------------------------------------------------
40
7-4) Waste Oil
------------------------------------------------------------------------------------------
40
8. Pneumatic Circuit Diagram
-------------------------------------------------------------------
41
9. Troubleshooting
------------------------------------------------------------------------------------
42
9-1) Machine Part
-------------------------------------------------------------------------------------
42
6
Safety Rules
1.1) Safety Stickers
The safety stickers in this user’s manual are divided into , , and . They indicate that if the
safety rules are not kept, injury or damage to machine might occur as a result.
WarningDangerCaution
No. Name
Description
Caution
Warning
Danger
Caution
If the machine is not properly handled, it may cause injury to
users or physical damage to the machine.
If the machine is not properly handled, it may cause death or
severe injury to users.
If the machine is not properly handled, it may cause death or
severe injury to users, and the urgency of the danger is very
high.
Warning
Danger
7
1.2) Machine Delivery
Danger
The machine delivery shall be conducted by the persons who are knowledgeable about
the safety instructions and rules. The following safety rules must be observed:
2.2.1) Manual delivery
When the machine is delivered by persons, they shall wear special shoes and tightly hold the
machine on the left and right sides.
2.2.2) Forklift delivery
1) A forklift shall be big enough to endure the weight of the sewing machine and carry the
machine.
2) Use the palette when lifting the machine. Set the center of gravity of the machine (center
of the left and right sides) at the fork arm of the forklift and carefully lift the machine.
Ban people from
standing under the
machine and remove
obstacles near the
machine.
Mark
Description
Make sure to maintain the balance of the machine when unloading the
machine by using a forklift or crane to prevent the deformation of the
machine or to prevent people from being exposed to danger.
Warning
8
Warning
1.3) Machine Installation
Caution
Depending on the installation environment, function errors, breakdown, or other physical
damage might result. Make sure to meet the following conditions for machine installation:
1) The workbench or table where the machine is installed should be durable enough to endure
the weight of the machine (see the name plate).
2) Dust and humidity are the cause of machine pollution and erosion. Please install an air
conditioner and conduct regular maintenance of the machine.
3) Install the machine at the place where it is not exposed to direct sunlight (if the machine is
exposed to direct sunlight for a long time, it may cause discoloration or deformation).
4) Secure the space around the machine. Place the machine at least 50cm away from the left,
right, and rear walls to secure sufficient space for maintenance activities.
5) Explosion risk : To prevent possible explosion, immediately stop the machine operation if
there are inflammable materials in the air.
6) Lighting : The machine does not offer lighting devices. When necessary, install needed
lighting.
7) Overturn risk : Do not install the machine on the unstable stand or table. If the machine
drops, it may cause injury or severe impact on the machine. If the machine is suddenly
stopped or the external impact is imposed, the machine might be capsized.
1.4) Machine Operation
SJS/A-BA2 was designed to conduct sewing on fabric or similar materials. and
labels are attached to the machine body to stress the observation of safety
directions. Make sure to comply with the followings during the machine operation.
1) Before turning on the power, read this manual thoroughly and have a full understanding of
machine operation.
2) Get properly dressed. Long hair, necklace, bracelet, or wide sleeve might be fed into the
machine during operation. Wear slip-free shoes to prevent slipping on the floor.
3) Check the moving scope of machine before its operation to find out whether the scope is
proper.
4) Keep hands and head away from the machine parts where accidents might occur (needle,
hook, thread take-up lever, pulley, etc.) during operation.
5) Do not remove the safety cover which protects pulley and shaft during machine operation
for user
s safety.
6) Cut the power supply before disassembling the electric box such as the control box, and
double-check that the power switch is Off.
7) Make sure that the power switch is Offwhen the upper shaft is manually rotated.
8) Stop the machine when the needle is replaced or when inspecting the machine after sewing
work is done.
9) Make sure to follow the cautions below. Otherwise, physical damage to the machine such as
malfunction and breakdown might result:
Do not put articles on the S/M table.
Avoid using a crooked needle or the needle with damaged tip.
Use the presser foot appropriate to working conditions.
Warning
Caution
9
Injury may be caused by winding.
Be sure to turn off the power before cleaning, lubricating, adjusting
or repairing.
1.6) Type of Safety Labels
1.5) Repair and Maintenance
When machine repair is needed, it shall be conducted by SunStar A/S engineers only
who have finished the due training course.
1) For cleaning and repair, cut the main power supply. Wait for 4 minutes before starting
maintenance to make the machine completely discharged.
2) Do not modify the machine specifications or parts without substantial consultations with
SunStar. Otherwise, it may threaten safety during machine operation.
3) Use the parts manufactured by SunStar to repair or replace the machine parts during A/S
service.
4) When repairing is completed, re-install all the removed safety covers.
Danger
Do not operate without finger guard and safety devices. Before
threading, changing bobbin and needle, and cleaning, turn off the
main switch.
High voltage will cause injury. Be sure to wait for at least 360
seconds after turning off the main switch and unplugging a power
cord if the cover needs to be opened.
For main shaft motor and X,Y drive box, it takes 10 minutes before they
are completely discharged after the main power supply is cut.
Caution
Injury may be caused by winding.
Be sure to turn off the power
before cleaning, lubricating,
adjusting or repairing.
10
1.7) Location of Safety Labels
Injury may be caused by winding.
Be sure to turn off the power
before cleaning, lubricating,
adjusting or repairing.
11
Machine Type and Specifications
Machine Type
2.1) Machine Type
2.2) Specifications
Model Type
Sewing Speed
Belt Loop Length
Belt Loop Width
Sewing Range (X, Y)
Max. Sewing Speed
Stitch Length
Needle in Use
Hook in Use
Presser Foot Lift
Average Production
Sensor
Solenoid
Memory
Table Height Adjustment
No. of Input Patterns
Motor Specifications
Power consumption
Feed System
Operating Temperature
Operating Humidity
Pneumatic Pressure in Use
Power Supply
SJS/A-BA2
100~2,800RPM
30~85mm
8~22mm
X: 22mm Y: 3.2mm
Up to 2,800spm
0.1~10mm
MR4.0, 4.5
All-direction revolving vertical large hook (2x)
Up to 21mm
1,900 units (8 hrs 5 loops)
10
18 (14 for supplying devices + 4 for sewing machine)
P-ROM
300mm
Up to 99 patterns
550W AC Servo Motor
600VA
Pulse motor
5C ~ 40C
20%~80%
0.5Mpa (5kgf/cm
2
)
1-Phase : 100~240V, 3-Phase : 200~440V, 50/60Hz
12
Preparation
3.1) Installation Environment
1) Do not use the machine if the voltage is 10% higher than the rated voltage to prevent accidents caused by wrong
operation.
2) Check the appropriateness of the pressure of pneumatic devices such as air cylinder to prevent accidents caused by wrong
operation.
3) Operating temperature
: 0°C ~ 40°C (32°F~ 104°F)
4) Storage temperature
: 25°C ~ 55°C (13°F~ 131°F)
5) Operating humidity
Relative humidity : 45% ~ 85%
3.2) Electricity Environment
1) Power Voltage
The power voltage used should be within the range of 10% of the rated voltage.
The power frequency used should be within the range of 1% of the rated frequency (50/60Hz).
2) Electromagnetic Wave Noise
The sewing machine should not share the power outlet with the product having powerful magnetic field or high
frequency. They should be placed away from each other.
3) Take caution not to spill water and coffee into the control box and the motor.
4) Do not drop the control box and the motor.
Observe the installation environment as set forth in the manual to make sure of proper operation of the
machine. Otherwise, unexpected errors might occur.
Warning
The power voltage used should be within the range of 10% of the rated voltage.
Warning
13
3.3) Parts Name
Lubrication Device
Arm
Table
Operation Box
Cutter
Control Box
Bed
Output Device
Sliding Device
Supply Device
14
3.4) Machine Installation
3.4.1) Thread Stand Installation
Assemble and install the thread stand.
3.4.2) Air Hose Connection
To connect the air hose, insert the quick joint sockets
into the quick joint plugs attached to the regulator.
To adjust the pneumatic pressure, lower the adjusting
lever and use the gauge.
1) Maintain the proper air pressure level of 5 bar (0.5mkf).
2) If the air pressure falls below 5bar, error message appears and the air pressure adjusting switch is
activated to stop the machine operation (error message: Err 24 (Low Pressure!)).
3) When the power is off, the remaining air is released and the remaining pressure is removed.
Caution
15
Machine Operation
4.1) Oil Supply
4.1.1) Oil Supply Position
When initially operating the sewing machine, check the remaining oil volume through the oil window and if it is
insufficient, supply more oil.
4.2) Needle
4.2.1) Needle Installation
Loosen the needle fixing screw on the needle bar. With
the long needle grooves headed against each other, insert
the needle until the upper section of the needle reaches
the end of the needle hole on the needle bar. Then use
the fixing screw to fix the needle.
4.2.2) Needle Placement
Move the thread take-up lever to the highest position and
place thread on the needle. As in the right-side figure,
place the needle.
Light material device is optional. Light materials can be sown after installing the light material-
dedicated device. Only when the replacement with the right device is made, sewing quality can be
guaranteed.
Reference
16
4.3) Thread
4.3.1) Upper and Lower Thread Placement
1) Upper Thread Placement
Place the thread take-up lever at the highest position
and make the thread pass through the main and
subordinate thread adjusting devices as in the figure.
2) Lower Thread Placement
Insert the bobbin into the bobbin case. Pass the
thread through the thread slot and the tension
adjusting plate spring .
4.3.2) Bobbin Case Placement and Removal
Open the left/right cover and push the bobbin into the
hook with the bobbin handle held until a click sound is
heard.
1. For bobbin replacement, the power must be turned off.
2. If the machine is operated with the bobbin case improperly placed, thread entanglement or bobbin
case ejection might occur.
Caution
17
4.3.3) Tension Adjustment
1) Upper Thread Tension Adjustment
Turn the main and subordinate tension adjusting nuts
clockwise to get the upper thread tension stronger. If
they are turned counter-clockwise, the tension gets
weaker.
The thread tension should be adjusted depending on
fabric, thread, stitch number, and other sewing
conditions.
2) Thread Take-up String Tension Adjustment
The thread take-up string tension can be adjusted by
turning the bolt for the main thread adjusting device
shaft with a drive. Clockwise turning makes the
thread take-up spring tension stronger, and vice
versa. (Standard moving range is 6~8mm, and
standard tension is 30~50g).
3) Lower Thread Tension Adjustment
The lower thread tension can be adjusted by turning
the tension adjusting screw on the bobbin case .
Clockwise turning makes the lower thread tension
stronger, and vice versa.
When the machine is released from
factory, the default tension value is set.
When necessary, adjustment is needed.
Note
18
4.3.4) Lower Thread Winder
1) Insert the bobbin into the thread winder shaft on the
thread winder base which is attached to the top cap.
2) Connect the thread winder lever to the bobbin and
press the start button.
3) When the thread winder lever is separated from the
bobbin, cut the bobbin thread using the thread winder
blade.
4.3.5) Bobbin Thread Volume Adjustment
When the thread winder adjusting plate to adjust the
wound thread volume on the bobbin. Move the plate to
A direction if the thread volume is big, and move the
plate to B direction if the thread volume is small.
Bobbin
Thread Winder
Adjusting Plate
19
5-1) Adjusting the full-rotary hook timing
SunStar machine uses two full-rotary large hooks and two needles. It also uses MR4.5 needle.
When adjusting the position of the hook timing, two full-rotary hooks (including inner and outer hooks) shall be at the center
of the needle at the same time.
Besides, when the needle is at the lowest position, check the
height of the needle bar, and make sure that the needle hole
is covered two-third by the needle.
Upon threading, the thread should be not restricted to
motion inside the needle at the lowest needle position.
Separate the bobbin from the bobbin case and loosen the
hook tightening screw for setting.
The needle bar moves at the range of 2mm to 2.2mm.
The full-rotary hook point is located at the center of the
needle, and it should pass by the needle while slightly
touching it within the distance from 0.05mm to 0.1mm from
the needle.
Lift the needle bar and separate the bobbin from the bobbin
case. Tighten the hook tightening screw for setting.
(Horizontal, vertical, shaft rotating direction)
Needle
Needle
thread
20
Check the location of the full-rotary hook and find the timing when the needle is not touched during its
entry into the hook needle hole.
Caution
1) To adjust the hook holder, loosen the hook holder tightening screw and set the distance between the hook holder and the hook at
1mm(vertical direction).
2) To adjust the hook inside the hook holder which is at the center of the needle, loosen the hexagon tightening screw located within
the hook holder base (horizontal direction).
3) To align the hook face with the center of the hook shaft, loosen the hexagon tightening screw within the hook holder base (rotating
direction).
Needle
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SunStar SJS/A-BA2 User manual
- Category
- Sewing machines
- Type
- User manual
SunStar SJS/A-BA2 is a direct-drive, automatic, 2-needle belt loop sewing machine designed for industrial use. It features a full-rotary hook timing system and a trimmer setting that allows for precise loop formation. The machine also includes a lower thread winder and a bobbin thread volume adjustment system for easy and efficient thread handling. Additionally, the SunStar SJS/A-BA2 has a supply device with adjustable loop turning finger and finger position, as well as an output device with speed and position adjustments.
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